Finding the Fourth Proportional to 23,087.60, 31,858.98 and 13,018.52

Step by Step Solution

1. Step 1: Write the proportion equation
   23,087.60 : 31,858.98 = 13,018.52 : x
2. Step 2: Convert to fraction form
   23,087.60/31,858.98 = 13,018.52/x
3. Step 3: Cross multiply
   23,087.60x = 31,858.98 × 13,018.52
4. Step 4: Simplify right side
   23,087.60x = 414,756,768.31
5. Step 5: Solve for x
   x = 414,756,768.31/23,087.60
6. Step 6: Final answer
   x = 17,964.48